.M-toast{
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    .mask{
        background: rgba(0,0,0,.5);
        width: 100%;
        height: 100%;
    }
    .con{
        position: absolute;
        left: 50%;
        top: 50%;
        padding: 20rpx;
        background: #fff;
        border-radius: 10rpx;
        transform: translate(-50%,-50%);
    }
}